Friction stir welding stirring needle cleaning device

Abstract

The utility model provides a friction stir welding stirring needle cleaning device which belongs to the technical field of friction stir welding and comprises a cleaning box, a first mounting plate is fixedly connected in the cleaning box, and an electric telescopic rod is fixedly connected to the lower end face of the first mounting plate. And the driving end of the electric telescopic rod penetrates through the first mounting plate and is fixedly connected with a moving plate, a second mounting plate is arranged on the upper side of the moving plate, the second mounting plate is fixedly connected with the cleaning box, and the upper end face of the second mounting plate is fixedly connected with a first bearing. Through the arrangement of the mounting cylinder, the cleaning cylinder and the locking structure, the cleaning cylinder can be quickly mounted and dismounted, the cleaning efficiency of the stirring needle is improved, the thread slipping phenomenon caused by repeated bolt mounting can be avoided, operation is easy and convenient, the service life is prolonged, and the practicability is high. The problem that cleaning efficiency is low due to the fact that a cleaning cylinder is inconvenient to disassemble and assemble in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of friction stir welding, and particularly relates to a cleaning device for a friction stir welding pin. Background Art

[0002] Friction stir welding means that the heat generated by the friction between a high-speed rotating welding tool and a workpiece plasticizes the material to be welded locally. When the welding tool moves forward along the welding interface, the plasticized material flows from the front of the welding tool to the back under the action of the rotational friction force of the welding tool, and a dense solid-phase weld is formed under the extrusion of the welding tool. However, during the long-term use of the welding tool, the pin at the front end often wraps a layer of substances on the surface of the friction material. If not cleaned for a long time, it will have a certain impact on the subsequent processing of the workpiece.

[0003] After retrieval, in the prior art, a Chinese patent with the patent application number CN202320000560.1 discloses a cleaning device for a friction stir welding pin, which relates to the technical field of friction stir welding. It includes a cleaning sleeve, which is a cylindrical structure with an open top and a hollow interior. A horizontal second partition plate and a first partition plate are fixedly installed in the cleaning sleeve. The inner cavity of the cleaning sleeve is divided into a first cavity, a second cavity, and a third cavity by the first partition plate and the second partition plate. The third cavity, the second cavity, and the first cavity are arranged from top to bottom in sequence. This cleaning device for a friction stir welding pin accommodates a cleaning cylinder through the action of device parts. One end of the pin is inserted into the cleaning cylinder, and the cleaning cylinder is used to clean the pin, effectively improving the cleaning efficiency of the pin. However, it still has the following defects:

[0004] (1) In the prior art, the cleaning cylinder and the pushing column of the cleaning device are fixed by bolts. Since the cleaning cylinder needs to be frequently disassembled, the installation and disassembly are relatively cumbersome. At the same time, frequent disassembly for a long time is prone to thread slipping, affecting the service life.

[0005] (2) In the prior art, the cleaning device rotates and cleans the pin through a snake-shaped groove. The rotation stroke is relatively fixed, resulting in a small number of rotation circles, making it inconvenient to fully rotate and clean the pin.

[0006] Therefore, we make improvements and propose a cleaning device for a friction stir welding pin. Utility Model Content

[0007] The purpose of the present utility model is to address the problems that the existing cleaning device is inconvenient for quickly installing the cleaning cylinder and the rotation cleaning is not sufficient.

[0008] To achieve the above-mentioned utility model purpose, the present utility model provides the following technical solutions:

[0009] A friction stir welding pin cleaning device to improve the above problems.

[0010] The specific implementation of the present utility model is as follows:

[0011] It includes a cleaning box, in which a first mounting plate is fixedly connected. The lower end surface of the first mounting plate is fixedly connected with an electric telescopic rod. The driving end of the electric telescopic rod penetrates through the first mounting plate and is fixedly connected with a moving plate. Above the moving plate, there is a second mounting plate, and the second mounting plate is fixedly connected with the cleaning box. The upper end surface of the second mounting plate is fixedly connected with a first bearing. A rotating sleeve is fixedly connected inside the inner ring of the first bearing. The bottom end of the rotating sleeve penetrates through the second mounting plate and extends to the lower end surface of the second mounting plate. A spline shaft is slidably connected inside the rotating sleeve. At the bottom of the spline shaft, there is a second bearing. The bottom end of the spline shaft is fixedly connected with the inner wall of the inner ring of the second bearing. The second bearing is fixedly connected with the moving plate. On the second mounting plate, there is a rotating structure for driving the spline shaft to rotate. The top end of the spline shaft is fixedly connected with a bearing plate. The upper end surface of the bearing plate is fixedly connected with a mounting cylinder. Inside the mounting cylinder, there is a cleaning cylinder. At the top of the cleaning cylinder, there is a locking structure.

[0012] As a preferred technical solution of the present utility model, the rotating structure includes a worm gear fixed on the rotating sleeve. The upper end surface of the second mounting plate is fixedly connected with a fixing plate. On the side wall of the fixing plate, a servo motor is fixedly connected. The driving end of the servo motor penetrates through the fixing plate and is fixedly connected with a worm that meshes with the worm gear.

[0013] As a preferred technical solution of the present utility model, the locking structure includes two assembly blocks symmetrically and fixedly arranged on the upper end surface of the cleaning cylinder. Below each of the two assembly blocks, there is a limiting block, and the limiting block is fixedly connected with the mounting cylinder. Inside each of the two assembly blocks, there is a rotating seat rotatably connected. The lower end surface of the rotating seat is fixedly connected with a connecting column. The bottom end of the connecting column is fixedly connected with a connecting piece. A limiting ring is slidably connected on the connecting column. A spring is sleeved on the connecting column. The upper and lower ends of the spring are respectively fixedly connected with the limiting ring and the connecting piece. On the limiting ring, two connecting rods are symmetrically and fixedly connected. The ends of the two connecting rods penetrate through the connecting piece and are fixedly connected with a matching piece. The lower end surface of the matching piece is fixedly connected with a pull ring.

[0014] As a preferred technical solution of the present utility model, the cleaning box is detachably connected with a maintenance plate by screws. A group of heat dissipation holes are evenly opened on the maintenance plate.

[0015] As a preferred technical solution of the present utility model, two through holes are symmetrically opened on the first mounting plate. Inside each of the two through holes, there is a guide rod. The top ends of the guide rods are respectively fixedly connected with the lower end surface of the moving plate.

[0016] As a preferred technical solution of the present utility model, a round hole matching the installation cylinder is provided on the upper end surface of the cleaning box, and the diameter of the bearing plate is greater than the diameter of the round hole.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] In the solution of the present utility model:

[0019] 1. By providing the installation cylinder, the cleaning cylinder and the locking structure, the rapid installation and disassembly of the cleaning cylinder are realized, the cleaning efficiency of the stirring needle is improved, and the problem of thread slipping caused by repeated installation of bolts can be avoided. The operation is simple and the service life is extended, solving the problem of low cleaning efficiency caused by inconvenient disassembly and assembly of the cleaning cylinder in the prior art;

[0020] 2. By providing the electric telescopic rod, the moving plate, the first bearing, the rotating sleeve, the spline shaft, the second bearing and the rotating structure, the automatic adjustment of the height of the cleaning cylinder is realized, and the cleaning cylinder can be automatically rotated, so that the stirring needle can be fully rotated and cleaned, solving the problem of poor cleaning effect caused by insufficient rotating cleaning in the prior art. Description of the Drawings

[0021] Figure 1 It is a schematic separation structure diagram of the friction stir welding stirring needle cleaning device provided by the present utility model;

[0022] Figure 2 It is a schematic overall structure diagram of the friction stir welding stirring needle cleaning device provided by the present utility model;

[0023] Figure 3 It is a schematic internal structure diagram of the friction stir welding stirring needle cleaning device provided by the present utility model;

[0024] Figure 4 It is a schematic sectional structure diagram of the friction stir welding stirring needle cleaning device provided by the present utility model;

[0025] Figure 5 Provided by the present utility model Figure 4 The enlarged view of part A;

[0026] Figure 6 It is a schematic locking structure diagram of the friction stir welding stirring needle cleaning device provided by the present utility model.

[0027] Labels in the figure:

[0028] 1. Cleaning box; 2. First mounting plate; 3. Electric telescopic rod; 4. Moving plate; 5. Second mounting plate; 6. First bearing; 7. Rotating sleeve; 8. Spline shaft; 9. Second bearing; 10. Rotating structure; 1001. Worm gear; 1002. Fixed plate; 1003. Servo motor; 1004. Worm; 11. Bearing plate; 12. Mounting cylinder; 13. Cleaning cylinder; 14. Locking structure; 1401. Assembly block; 1402. Limiting block; 1403. Rotating base; 1404. Connecting column; 1405. Connecting piece; 1406. Limiting ring; 1407. Spring; 1408. Connecting rod; 1409. Fitting piece; 1410. Pull ring; 15. Maintenance plate; 16. Guide rod. Detailed implementation mode

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.

[0030] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown in the figure, this embodiment proposes a friction stir welding pin cleaning device, which includes a cleaning box 1. A first mounting plate 2 is fixedly connected inside the cleaning box 1. An electric telescopic rod 3 is fixedly connected to the lower end surface of the first mounting plate 2. The driving end of the electric telescopic rod 3 penetrates through the first mounting plate 2 and is fixedly connected to a moving plate 4. The electric telescopic rod 3 can control the up and down movement of the moving plate 4, thereby adjusting the height of the cleaning cylinder 13 to adapt to different lengths of the stirring pins. This adjustment method is flexible and easy to operate. A second mounting plate 5 is provided on the upper side of the moving plate 4, and the second mounting plate 5 is fixedly connected to the cleaning box 1. A first bearing 6 is fixedly connected to the upper end surface of the second mounting plate 5. A rotating sleeve 7 is fixedly connected to the inner ring of the first bearing 6. The bottom end of the rotating sleeve 7 penetrates through the second mounting plate 5 and extends to the lower end surface of the second mounting plate 5. A spline shaft 8 is slidably connected inside the rotating sleeve 7. A second bearing 9 is provided at the bottom of the spline shaft 8. The bottom end of the spline shaft 8 is fixedly connected to the inner wall of the inner ring of the second bearing 9. The second bearing 9 is fixedly connected to the moving plate 4. A rotating structure 10 for driving the spline shaft 8 to rotate is provided on the second mounting plate 5. Supported by the first bearing 6 and the second bearing 9, the spline shaft 8 can rotate inside the rotating sleeve 7 to realize the rotation action of the cleaning cylinder 13. This rotation helps to clean the stirring pin more comprehensively. The top end of the spline shaft 8 is fixedly connected to a bearing plate 11. A mounting cylinder 12 is fixedly connected to the upper end surface of the bearing plate 11. A cleaning cylinder 13 is provided inside the mounting cylinder 12. A locking structure 14 is provided at the top of the cleaning cylinder 13, which facilitates the quick installation and disassembly of the cleaning cylinder 13. There is no need to use bolts for disassembly and assembly, improving the efficiency of installation and disassembly and the cleaning efficiency. Fixing sandpaper and alcohol cotton pads in the cleaning cylinder 13 is prior art and will not be elaborated here.

[0031] As Figure 1 and Figure 6 shown, as a preferred embodiment, on the basis of the above method, further, the rotating structure 10 includes a worm gear 1001 fixed on the rotating sleeve 7. A fixing plate 1002 is fixedly connected to the upper end surface of the second mounting plate 5. A servo motor 1003 is fixedly connected to the side wall of the fixing plate 1002. The driving end of the servo motor 1003 penetrates through the fixing plate 1002 and is fixedly connected to a worm 1004 meshing with the worm gear 1001; the servo motor 1003 drives the worm gear 1001 through the worm 1004, and then drives the spline shaft 8 and the cleaning cylinder 13 to rotate, which can comprehensively clean the stirring pin and also has a self-locking characteristic, ensuring that the rotation action can be locked when needed and increasing the stability of the operation.

[0032] As Figure 1 and Figure 6As shown, as a preferred embodiment, on the basis of the above method, further, the locking structure 14 includes two assembly blocks 1401 symmetrically and fixedly arranged on the upper end surface of the cleaning cylinder 13. Limiting blocks 1402 are arranged on the lower sides of the two assembly blocks 1401, and the limiting blocks 1402 are fixedly connected to the mounting cylinder 12. Rotating seats 1403 are rotatably connected in the two assembly blocks 1401. A connecting column 1404 is fixedly connected to the lower end surface of the rotating seat 1403. A connecting piece 1405 is fixedly connected to the bottom end of the connecting column 1404. A limiting ring 1406 is slidably connected to the connecting column 1404. A spring 1407 is sleeved on the connecting column 1404. The upper and lower ends of the spring 1407 are fixedly connected to the limiting ring 1406 and the connecting piece 1405 respectively. Two connecting rods 1408 are symmetrically and fixedly connected to the limiting ring 1406. The ends of the two connecting rods 1408 penetrate through the connecting piece 1405 and are fixedly connected with a matching piece 1409. A pull ring 1410 is fixedly connected to the lower end surface of the matching piece 1409. By pulling the pull ring 1410, the locking of the cleaning cylinder 13 can be released, which is convenient for replacing or taking out the cleaning cylinder 13. The design of the spring 1407 ensures that it can automatically reset after the pull ring 1410 is released, which is convenient for the next use.

[0033] As Figure 1 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, the cleaning box 1 is detachably connected with a maintenance board 15 by screws. A group of heat dissipation holes are evenly arranged on the maintenance board 15. The maintenance board 15 facilitates the maintenance and repair of the internal components of the cleaning device. The arrangement of the heat dissipation holes ensures that when the cleaning device operates for a long time, the internal heat can be dissipated in time to prevent overheating.

[0034] As Figure 1 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, two through holes are symmetrically arranged on the first mounting plate 2, and guide rods 16 are arranged in the two through holes. The top ends of the guide rods 16 are fixedly connected to the lower end surface of the moving plate 4 respectively. The guide rods 16 limit the up and down movement track of the moving plate 4, preventing it from shifting or shaking under the drive of the electric telescopic rod 3, and increasing the stability and reliability of the device.

[0035] As Figure 1 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, a round hole matching the mounting cylinder 12 is arranged on the upper end surface of the cleaning box 1. The diameter of the bearing plate 11 is larger than the diameter of the round hole. The mounting cylinder 12 matches the round hole on the cleaning box 1 to ensure the movement and rotation of the mounting cylinder 12.

[0036] Specifically, when the friction stir welding pin cleaning device is working / being used: First, the staff sets two cleaning cylinders 13. Sandpaper is fixedly arranged on the inner wall of one cleaning cylinder 13, and an alcohol cotton sheet is fixedly arranged on the inner wall of the other cleaning cylinder 13. Then, the cleaning cylinder 13 containing sandpaper is inserted into the installation cylinder 12. Then, the pull rings 1410 are respectively pulled to move the matching pieces 1409 outwards, so that the connecting rods 1408 drive the limiting rings 1406 to move outwards, making the springs 1407 in a compressed state. Then, the rotating seat 1403 is rotated through the pull rings 1410, so that the connecting columns 1404 are clamped into the limiting blocks 1402. The pull rings 1410 are released, and the springs 1407 cause the limiting rings 1406 to rise and then abut against the limiting blocks 1402. Then, the stirring pin is inserted into the cleaning cylinder 13, and the electric telescopic rod 3 is driven to move the moving plate 4. The movement of the moving plate 4 drives the spline shaft 8 and the bearing plate 11 to move, so that the cleaning cylinder 13 rises to adapt to stirring pins of different lengths. Then, the servo motor 1003 is driven to rotate the worm 1004. The rotation of the worm 1004 drives the worm wheel 1001 and the rotating sleeve 7 to rotate. The rotation of the rotating sleeve 7 drives the spline shaft 8 and the bearing plate 11 to rotate, and then the installation cylinder 12 and the cleaning cylinder 13 rotate, so as to clean the stirring pin. Then, the cleaning cylinder 13 containing the alcohol cotton sheet is installed into the installation cylinder 12, and the above operations are repeated to clean the stirring pin.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution of the present invention is within the protection scope of the present invention.

Claims

1. A friction stir welding stirring needle cleaning device, comprising a cleaning box (1), characterized in that: A first mounting plate (2) is fixedly connected inside the cleaning box (1); an electric telescopic rod (3) is fixedly connected to the lower end surface of the first mounting plate (2); a driving end of the electric telescopic rod (3) passes through the first mounting plate (2) and is fixedly connected to a movable plate (4); a second mounting plate (5) is provided on the upper side of the movable plate (4); the second mounting plate (5) is fixedly connected to the cleaning box (1); a first bearing (6) is fixedly connected to the upper end surface of the second mounting plate (5); a rotating sleeve (7) is fixedly connected to the inner ring of the first bearing (6); the bottom end of the rotating sleeve (7) passes through the second mounting plate (5) and extends to the lower end surface of the second mounting plate (5); A spline shaft (8) is slidably connected inside the rotating sleeve (7), a second bearing (9) is provided at the bottom of the spline shaft (8), the bottom end of the spline shaft (8) is fixedly connected to the inner wall of the inner ring of the second bearing (9), the second bearing (9) is fixedly connected to the movable plate (4), a rotating structure (10) for driving the spline shaft (8) to rotate is provided on the second mounting plate (5), the top end of the spline shaft (8) is fixedly connected to a bearing plate (11), the upper end surface of the bearing plate (11) is fixedly connected to a mounting tube (12), a cleaning tube (13) is provided inside the mounting tube (12), and a locking structure (14) is provided at the top of the cleaning tube (13).

2. A friction stir welding stirring needle cleaning device according to claim 1, characterized in that: The rotating structure (10) comprises a worm wheel (1001) fixed on a rotating sleeve (7); the upper end surface of the second mounting plate (5) is fixedly connected to a fixing plate (1002); a servo motor (1003) is fixedly connected to a side wall of the fixing plate (1002); a driving end of the servo motor (1003) passes through the fixing plate (1002) and is fixedly connected to a worm (1004) meshing with the worm wheel (1001).

3. A friction stir welding stirring needle cleaning device according to claim 1, characterized in that: The locking structure (14) comprises two symmetrical assembly blocks (1401) fixed on the upper end surface of the cleaning cylinder (13), the lower sides of the two assembly blocks (1401) are provided with a limit block (1402), the limit block (1402) is fixedly connected to the installation cylinder (12), the two assembly blocks (1401) are rotatably connected with a rotating seat (1403), the lower end surface of the rotating seat (1403) is fixedly connected with a connecting column (1404), the bottom end of the connecting column (1404) is fixedly connected with a connecting piece (1405), and the connecting column (14 04) is slidably connected with a limit ring (1406), the connecting column (1404) is sleeved with a spring (1407), the upper and lower ends of the spring (1407) are respectively fixedly connected to the limit ring (1406) and the connecting piece (1405), the limit ring (1406) is symmetrically and fixedly connected with two connecting rods (1408), the ends of the two connecting rods (1408) both pass through the connecting piece (1405) and are fixedly connected with a matching piece (1409), and the lower end surface of the matching piece (1409) is fixedly connected with a pull ring (1410).

4. A friction stir welding stirring needle cleaning device according to claim 1, characterized in that: The cleaning box (1) is detachably connected to a maintenance plate (15) via screws, and a group of heat dissipation holes are evenly opened on the maintenance plate (15).

5. The friction stir welding stirring needle cleaning device according to claim 1, characterized in that: The first mounting plate (2) is symmetrically provided with two through holes, and guide rods (16) are provided in the two through holes, and the top ends of the guide rods (16) are respectively fixedly connected to the lower end surfaces of the movable plates (4).

6. A friction stir welding stirring needle cleaning device according to claim 1, characterized in that: The upper end surface of the cleaning box (1) is provided with a circular hole matching the mounting cylinder (12), and the diameter of the bearing plate (11) is larger than the diameter of the circular hole.

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